Hi Philip,
I'm not sure the reason it was designed to, but if you need to use the view on several folders, you can make a master view that is for all Mail and Post folders, then copy it for each folder, choosing the this folder option. See this article for more information:
https://www.slipstick.com/exchange/set-default-microsoft-exchange-public-folder-view/
(Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.)
Regards,
Steve Fan
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